如何将jpg图像加载到3d rgb numpy数组

问题描述 投票:0回答:1

我已经制作了张量流模型,并使用model.fit_generator方法对图像目录进行了训练和测试。但是知道我想在单个图像上使用它并且没有任何方法我可以找到允许这样我所以我决定通过将jpg图像转换为3d rgb numpy数组来使用numpy数组。你会怎么做?

model = Sequential()
model.add(Convolution2D(32, 3, 3, input_shape=(img_width, img_height,3)))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size=(2, 2)))

model.add(Convolution2D(32, 3, 3))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size=(2, 2)))

model.add(Convolution2D(64, 3, 3))
model.add(Activation('relu'))
model.add(MaxPooling2D(pool_size=(2, 2)))

model.add(Flatten())
model.add(Dense(64))
model.add(Activation('relu'))
model.add(Dropout(0.5))
model.add(Dense(1))
model.add(Activation('sigmoid'))

model.compile(loss='binary_crossentropy',
          optimizer='rmsprop',
          metrics=['accuracy'])


nb_epoch = 1
nb_train_samples = 2048
nb_validation_samples = 832

#model.fit_generator(
#    train_generator,
#    samples_per_epoch=nb_train_samples,
#   nb_epoch=nb_epoch,
#   validation_data=validation_generator,   
#  nb_val_samples=nb_validation_samples)
python tensorflow
1个回答
0
投票

尝试使用PIL(pip install Pillow):

from PIL import Image 
import numpy as np
im = Image.open("test.jpg")
im = np.array(im,dtype=np.float32)

然后预测:

#Assuming batch size of 1 and data is normalised
y = model.predict(np.expand_dims(im/255,0))
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